Finding the Fourth Proportional to 208,215,276.12, 287,337,108.26 and 115,401,776.04
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Solution
The fourth proportional to 208,215,276.12, 287,337,108.26 and 115,401,776.04 is: 159,254,466.02
Step by Step Solution
- Step 1: Write the proportion equation
208,215,276.12 : 287,337,108.26 = 115,401,776.04 : x - Step 2: Convert to fraction form
208,215,276.12/287,337,108.26 = 115,401,776.04/x - Step 3: Cross multiply
208,215,276.12x = 287,337,108.26 × 115,401,776.04 - Step 4: Simplify right side
208,215,276.12x = 33,159,212,614,824,748 - Step 5: Solve for x
x = 33,159,212,614,824,748/208,215,276.12 - Step 6: Final answer
x = 159,254,466.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.